Attachment for platen-carriages.



A. PENTECOST.

ATTACHMENT FDR PLATENA GARRIAGES.

AIPLIGATION FILED MAY 24, 1906.

918,587. Patented Apr. 20. 1909.

MM [422% (Jim UNITED srnrns PATENT OFFICE.

ARTHUR BENTEOOST, OF EAST ORANGE, NEW JERSEY, ASS IGNOR TO PIKE ADDING MACHINE COMPANY, OF ORANGE, 'NEW JERSEY, A CORPORATION OF NEW JERSEY.

ATTACHMENT FOR PLArEmcARnIA'eEs.

Specification of Letters Patent.

Patented April 20, 1909.

Application filed. May 24, 1906. Serial No. 318,545.

To whom it may concern:- iBe it known that I, ARTHUR PnN'rEoos'r,

' a-subject of the King of Great Britain, and

, my invention consists in means for accurately arresting the carriage as required and for seoi'rring it in place upon its-frame or sup port, and for releasing the same when required, as fully set forth hereinafter, and as illustrated in the accompanying drawing, inwhi'oh:

Figure l is asectional view illustrating part of the frame of an adding machine with a sliding carriage and with my improved attachment; and Fig. 2 is a rear elevation of the parts.

The carriage B is provided. with the usual, or any suitable platen O, and slides upon a su ort or frame A,-being guided in anys'uita e manner. a

Ill-order to temporarily. arrest the sliding movement of the carriage I make use of a stop bar D which is provided with a suitable stop, or, if desired, with a plurality of stops E, secured adjustably to said bar so as to be set by hand in any desired position or positions, and on the carriage is a finger'F 'yieldingly connected with the carriage and normally pressed toward the bar, and which. by its contact with a stop will hold the carrlage in its desired position. As shown, each st has two reversely inclined edges 00, m, an an intermediate notch y, and as the carriage is moved in one direction or the other the finger, if in contact with either raised edge, will depress the bar D until said finger alines with the intermediate. notch, when it will enter the latter and hold the carriage in place, the bar D being of course 7 moved upwardby springs, hereinafter re- .the ,indi-ned part w.

ferred to, as soon as the finger passes from Suitable .means are combined with the finger for pressing it toward the bar, and for raising it. As shown, the "finger is carried by a shaft 3 "to which is connected a bell crank leyer or arm H, and to one arm 5 of "the lever is connected a spring 6 which tends to rock the shaft to carry the finger toward the edge of the bar, and by applying the forefinger to the lever H and the th'u'mb'to a h'orn 7 on the carriage the shaft may be readiiy rocked against the stress of the spring, lift- .in'gth'e finger away from the edge of the bar suificiently to permit the carriage to be moved back and forth. When it is necessary tol'ift the finger out ofthe notch of the stop, the lever H will of course be moved to correspondin'gly "elevate the finger. It is desirable however that when the carriage is in a position,;with the finger depressed and out of contact with a stop, or above the stop but out of line with the-no'tchthereof, that the carriage may be held or clamped to the support so as notto move too readily, andI therefore provide frictional clamping means preferably connected so as to be released whenever the finger is lifted, and so as to be applied whenthe finger isdepressed sufficiently 'to contact with the upper edge of the bar. To this end the bar D is yieldingly connected -to the frame or support.

As shown, it has arms '9, -9, -extendi=ng at right angles and pivoted to the support by pivots 10 with springs- 12' tending to lift the bar, but are not of a strength to overcomethat of thespring 6.

The shaft 3 carriesan eccentric 13 which is the hub of the finger F, and when the shaft is turned by the spring 6 to carry the finger downward against the bar D, the eccentric will bind or bite against the supportand clamp the carriage in place, the bar yielding to an extent to permit the finger to move downward suiiiciently for the eccentrio to thus bit-e against the support. It will thus be seen that the eccentric is operative to prevent free longitudinal movement of the Tara enabled to set the carriage in different predetermined positions desired, and while different means of adjusting the stop or stops may be employed, I prefer to provide the bar with a slot 10 into which extends a guide lug 15 from each stop and through which passes the shaft of a clamp screw 16 into the stop, and by turning the said screw in one direction or the other the stop may be released, set in position, and then secured. Further it will be evident that said series of stops may be used with different contact devices. 1

Without limiting myself to the construction shown, I claim:

1. The combination with a platen carriage and with 'a support therefor, of a bar parallel to the platen and attached to said support, a stop securedndjustably on the bar, a stop finger extending at right angles to the bar from the carriage in posit on to normally contact with said stop, and means for shifting said finger to carry it out of position to contact with the stop.

2. The combination with a platen carriage and with a support therefor, cf a bar parallel to the platen and attached to said sup.- port, a plurality of stops secured adjustably on the bar, a stop finger extendingfrom the carriage at right angles to the bar in position to normally contact with said stops, and means for shifting said finger to carry it out of position to contact with the stop.

3. The combination with a platen carriage and with a support'therefor, ofa bar attached to said support, a stop secured adjustably on the bar and provided with a notch,'a stop finger extending from the carriage in position to normally contact with said stop, means for shifting said finger to avoid such contact, and a clamp connector to hold the carriage on the support, when said finger is in normal position.

4. The combination with the sliding platen carriage and support therefor, of a bar provided with an adjustable notched stop, a finger carried by the carriage and movable to engage and disengage said stop, and means connected with the finger for clamping the carriage to the support.

5. The; combination with the platen carriage and support on which the carriage slides, of a stop bar, a movable stop thereon provided with a notch, and a shaft on the carriage provided with a finger for contacting with the stop of said bar.

6. The combination with the platen carriage and support on which the carriage slides, of a stop bar provided with a series of adjustable stops, a shaft on the carriage provided with a finger for contacting with the stops of said bar, and an eccentric carried by the shaft to engage the support when the finger is engaging the stop bar.

7. The combination with the platen carriage and support on which the carriage slides, 'of a stop bar provided with a plu" rality of notched stops-,a shaft 011 the can riage provided with a finger for contacting with the stop of said bar, an eccentric carand a support on which itslidesof-a clamp carried by the carriage and normally engaging the support to prevent free movement of the carriage on said support,- a finger carried by the carriage, a stop on the support adapted to be engaged by said finger to positively lock the carriage against longitudinalmovement, and means for releasing said clamp and disengaging said finger from said step.

t). The combination with a platen carriage and a support on which it slides, of a finger carried by the carriage, a plurality of stops on the support each adapted to engage said finger and positively lock the carriage in position on the support, clamping means for preventing free movement of the carriage on the support when said finger is disengaged from said. stops,- and means for re-' leasing said clamping means.

10. The combination with a platen carriage and a support on which it slides, of a shaft mounted on the carriage, a finger carried by said shaft and adaptedto engage a stop on said support to positively prevent movement of the-carriage on the support, I independentclamping means connected with 1.00 said shaft and constantly tending to engage the support to prevent. free longitudinal movement of the carriage, and means for rocking said shaft to disengage the finger from said stop and releasesaid clamping means.

1.1. The combination with a platen carriage and a support on which it slides, of a shaft mounted on the carriage and having a fingeradapted to engage a stop to posi-' tively prevent longitudinal movement ofthe carriage on its support, an eccentric on said shaft adapted to engage the support, a spring acting to hold said shaft in position to cause the eccentric thereon to engage the support and said finger to engage said stop, and means for rocking the shaft in opposition to said spring.

12. The combination with a platen carriage and a supporton which it slides, of a stop finger connected with said carriage, a plurality of stops arranged to make contact with said finger, and means for changing the relative positions of stops and finger to insure or avoid contact as desired.

13. The combination with a platen carriage and a support on which it slides, of a stop finger yieldingly connected with said carriage, a bar over which the finger extends, and a plurality of stops adjustably connected with said bar and having reversels inclined edges and an intermediate notch.

1st. The combination with a platen oarriage and a support on which it slides, of a stop finger yieldingly connected with said carriage, a bar over which the finger extends, a stop adj nstahly connected with said bar and having reversely inclined edges and an intermediate notch, and means for shifting said finger.

15. The combination with a platen car riage and a supporton which it slides, of a stop finger yieldingly. connected with said carriage, a bar over which the finger extends, a stop adjustably connected with said bar and having reversely inclined edges and out of operative position.

aninterinediate notch, and a hand lever for shifting said finger. I I 16. The combination with a platen car riage and a support on which it slides, of a stop bar having a yielding connection with said support, a finger yieldingly connected with said carriage and bearing on said bar, a clamp on the carriage, and means for shifting the fingerand clamp simultaneously In testimony whereof I afiix my signature in presence 0 two .witnesses.

, v ARTHUR PENTECOST. \Vitnesses J. L. WVHITE,

'F. D. MACFADDEN. 

